Case when when

ruby-talk
1

Hi all

I am just wondering how can we make two cases belong to the same bunch
of code. I tried to do it like c but it did not work. it is like this in
c

switch(x)
{
case 5:
#do bla bla
break;
case 7 : case 9:
#do bla bla
break;
default:
#bla
}

however, I tried to do the same way in ruby but it did not work.
case x
when 5:
#do bla
when 7: when 9:
#do bla bla
else
#bla
end

I know that when provides conditions and I can use them but I am just
wondering what is the way because i did not find it in books and online

regards

···

--
Posted via http://www.ruby-forum.com/.

2

Hi Shuaib,

I know that when provides conditions and I can use them but I am just
wondering what is the way because i did not find it in books and online

case x
   when 5,6,7: puts 'a'
   when 10,11: puts 'b'
end

HTH,
Peter

···

___
http://www.rubyrailways.com
http://scrubyt.org

3

case foo
when 1, 2, 10
  then ...
else
  ...
end

Cheers

robert

···

2007/11/12, Shuaib Zahda <shuaib.zahda@gmail.com>:

Hi all

I am just wondering how can we make two cases belong to the same bunch
of code. I tried to do it like c but it did not work. it is like this in
c

switch(x)
{
case 5:
#do bla bla
break;
case 7 : case 9:
#do bla bla
break;
default:
#bla
}

however, I tried to do the same way in ruby but it did not work.
case x
when 5:
#do bla
when 7: when 9:
#do bla bla
else
#bla
end

I know that when provides conditions and I can use them but I am just
wondering what is the way because i did not find it in books and online

--
use.inject do |as, often| as.you_can - without end

4

case x
   when 5..9: puts 'a' # 5,6,7,8,9
   when 10...14: puts 'b' # 10,11,12,13
   else puts 'c'
end

# x = 5 then |> a
# x = 10 then |> b
# x = 14 then |> c

···

On 11/12/07, Peter Szinek <peter@rubyrailways.com> wrote:

Hi Shuaib,

> I know that when provides conditions and I can use them but I am just
> wondering what is the way because i did not find it in books and online

case x
   when 5,6,7: puts 'a'
   when 10,11: puts 'b'
end

HTH,
Peter
___
http://www.rubyrailways.com
http://scrubyt.org